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The Material Of Dental Filling

A dental filling is among the most common tool that dentists use to repair a tooth, fix a cavity, eliminate infection and restore teeth to health. In general, the idea is simple. A tooth develops and area of decay. The dentist cleans out this area of infection with a drill, then fills it in with a choice of compounds. Thus, the dental filling is complete.

 
One of the most common filling material is called amalgam. This substance has been used by dentists for more than 100 years, but has been the source of some controversy in recent years. That's because amalgam contains mercury, and some have made the claim that mercury can actually poison the human body, and cause a host of illnesses.
 
Amalgam contains not only mercury, but also silver, tin and copper all mixed together, thus the name "amalgam." Experts say that because the mercury in the amalgam binds completely to the other metals, it simply cannot leech into the body and cause health problems. It is the official position of the American Dental Association that mercury in fillings is safe. This is also the conclusion of numerous government groups, including the Center for Disease Control, the National Institute of Health and others.
 
In order to reassure patients about the safety of the materials and some tools like dental air polisher used for a dental fillings dentists are now using composite resins which are not as strong as the original amalgams but provide a more natural look instead of the old metallic appearance. Because composite resins they are not as strong as other materials used in dental fillings they sometimes have to be cemented in order to allow better adhesion.
 
A very popular material used today in dental fillings is porcelain. The material used in dental fillings is actually a mixture of porcelain, ground glass and ceramic, unlike other materials porcelain tends to be more durable and will have a more natural look which is what most patients want, the only downside to porcelain is that they've may become cracked if they are exposed to prolonged biting pressure, aside from this minor disadvantage porcelain remains the favorite material when it comes to crowns and dental fillings.
 
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